import axios from 'axios'
import store from '@/store'
import { getToken } from '@/utils/auth'
import Message from '@/components/Message/index.js'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
       * If you want to get http information such as headers or status
       * Please return  response => response
       */

  /**
       * Determine the request status by custom code
       * Here is just an example
       * You can also judge the status by HTTP Status Code
       */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 0) {
      Message.error(res.message || '错误')
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        Message.warning('请重新登录！')
        store.dispatch('user/resetToken').then(() => {
          location.reload()
        })
      }
      return Promise.reject(new Error(res.message || '错误'))
    } else {
      return res
    }
  },
  error => {
    if (error.response && error.response.data.message) {
      Message.error(error.response.data.message)
    } else {
      Message.error(error.message)
    }
    return Promise.reject(error)
  }
)

export default service
